All Are Correct Statements Regarding the Protein Degradation Process Involving

Multiple Choice

All are correct statements regarding the protein degradation process involving ubiquitin EXCEPT:

A) The modified protein is degraded by an ATP-dependent protease complex.
B) The ubiquitin binding to the protein to be degraded leads to a novel branched protein.
C) The ubiquitin is covalently attached to a cysteine residue in the protein to be degraded.
D) Three additional proteins (E₁, E₂, and E₃) are involved in the ligation of ubiquitin to the protein.
E) Ubiquitin is a highly conserved protein.